i want to build this scissor lifti want to decide the thickness of the links also the obtimized material for this link becaus i want the weight of this not heavy ..so iam asking how can i do this using FEA "static analysis" the down hole should be rotating and connecting to the base using bearthe up hole should be moving horizontally as u see in the full modelthanks

i want to build this scissor lifti want to decide the thickness of the links also the obtimized material for this link becaus i want the weight of this not heavy ..so iam asking how can i do this using FEA "static analysis" the down hole should be rotating and connecting to the base using bearthe up hole should be moving horizontally as u see in the full modelthanks

can you do this with a static analysis? possibly. what is the load case that you want to test? like you said, the way it is built it is meant to slide. are you going to fix it in a certain position for your test case? from your description that doesn't seem to be the case which then points you to a motion analysis to see what the motion is and then run a static analysis.

for mesh size, a good start would be half the thickness of the smallest thickness but you'll need to work with the mesh to choose a final mesh.

fixtures, need to know more about what you're going to try to do. but i'd suggest starting with the tutorials on some parts and simple assemblies first.